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Cheap flights from Cardiff to Boston from £167

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 30/9. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — BOS
20 Jul — 27 Jul1
1 adult

Cheap flight deals from Cardiff to Boston

Discover tips and strategies to find the most affordable flight options for your journey from Cardiff (CWL) to Boston (BOS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 15 July 2025.

Round-trip from

£469

One-way from

£167

Popular in

August

Cheapest in

June

Average price

£832
Delta
  • Delta
  • 27/8-3/9
  • 3 total stops
  • 26h 40m total
  • Cardiff to Boston
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30/9
  • 30/9
  • 2 total stops
  • 33h 55m total
  • Cardiff to Boston
Search Deals
Highest demand for flights based on searches. 21% potential increase in price (£114 potential increase over avg. return price).
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Cheapest flight prices on average. 6% potential price decrease (£24 potential savings vs. average return price).
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Average for round-trip flights in July 2025
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Find flight deals from Cardiff to Boston

Cheapest flights from Cardiff to Boston
Explore the most affordable flight options available from Cardiff to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 July 2025.

Wed 27/809:50CWL - BOS
1 stop11h 45mDelta
Wed 3/913:20BOS - CWL
2 stops14h 55mDelta
Deal found 13/7£469
Fri 24/1017:15CWL - BOS
2 stops35h 19mVirgin Atlantic
Sat 1/1112:55BOS - CWL
2 stops16h 55mVirgin Atlantic
Deal found 11/7£598
Wed 27/820:30CWL - BOS
2 stops28h 20mMultiple Airlines
Wed 3/920:50BOS - CWL
3 stops31h 25mMultiple Airlines
Deal found 13/7£710
Tue 12/812:00CWL - BOS
2 stops15h 40mBritish Airways
Tue 19/821:55BOS - CWL
2 stops32h 35mBritish Airways
Deal found 13/7£975

Cheapflights Fare Finder

Customise your flight search to find flights from Cardiff to Boston that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 15 July 2025.
Use the filters below to find and compare flights from Cardiff to Boston that are best for you.

Fly from

Cardiff

Fly to

Boston

Route

Depart

Return

Price

CardiffBoston

CWL - BOS

CWLBOS

Cardiff Wales

Wed 27/8

09:50-16:35

1 stop11h 45m

Boston Logan Intl

Wed 3/9

13:20-09:15

2 stops14h 55m

£469

CardiffBoston

CWL - BOS

CWLBOS

Cardiff Wales

Fri 24/10

17:15-23:34

2 stops35h 19m

Boston Logan Intl

Sat 1/11

12:55-09:50

2 stops16h 55m

£598

CardiffBoston

CWL - BOS

CWLBOS

Cardiff Wales

Wed 27/8

20:30-19:50

2 stops28h 20m

Boston Logan Intl

Wed 3/9

20:50-09:15

3 stops31h 25m

£710

CardiffBoston

CWL - BOS

CWLBOS

Cardiff Wales

Tue 12/8

12:00-22:40

2 stops15h 40m

Boston Logan Intl

Tue 19/8

21:55-11:30

2 stops32h 35m

£975

CardiffBoston

CWL - BOS

CWLBOS

Cardiff Wales

Tue 30/9

16:20-21:15

2 stops33h 55m

£167

CardiffBoston

CWL - BOS

CWLBOS

Cardiff Wales

Wed 1/10

20:30-21:15

2 stops29h 45m

£209

CardiffBoston

CWL - BOS

CWLBOS

Cardiff Wales

Wed 1/10

09:50-16:30

1 stop11h 40m

£1,421

Flights are sorted by cheapest return flights first.

Deals found on 12/7

Best time to book a flight from Cardiff to Boston

Have a flexible travel schedule? Discover the best time to fly to Boston from Cardiff with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Cardiff to Boston

What is the cheapest month to book a flight from Cardiff to Boston?

Currently, October is the cheapest month in which you can book a flight from Cardiff to Boston (average of £10). Flying from Cardiff to Boston in July is currently the most expensive (average of £724). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Boston

Get insights into the airlines that provide service to Boston. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Boston. Reviews last updated 15 July 2025.
See what other customers who have flown with Delta, Virgin Atlantic, andVueling from Cardiff to Boston have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
7,956 reviews
Check prices

Boarding

8.2

Entertainment

7.9

Crew

8.5

Overall

8.0

Comfort

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Delta
8.0
Very Good
7,956 reviews
Delta
8.0
Very Good
7,956 reviews
Check prices

Boarding

8.2

Entertainment

7.9

Crew

8.5

Overall

8.0

Comfort

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Virgin Atlantic
7.4
Good
655 reviews
Delta
8.0
Very Good
7,956 reviews
Check prices

Boarding

8.2

Entertainment

7.9

Crew

8.5

Overall

8.0

Comfort

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Vueling
7.1
Good
1,172 reviews
Delta
8.0
Very Good
7,956 reviews
Check prices

Boarding

8.2

Entertainment

7.9

Crew

8.5

Overall

8.0

Comfort

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
British Airways
6.6
Okay
7,134 reviews
Delta
8.0
Very Good
7,956 reviews
Check prices

Boarding

8.2

Entertainment

7.9

Crew

8.5

Overall

8.0

Comfort

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.

Related info for your journey

Find useful and relevant information for your journey from Cardiff to Boston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Cardiff to Boston round-trip?

    Cheapflights users have booked flights from Cardiff to Boston round-trip from £469. Other airlines that can offer you cheap pricing are Virgin Atlantic, from £598, and British Airways, from £975. Delta is currently priced 16% below the average price you’ll pay for this route.

  • Can I find deals for flights from Cardiff to Boston that include hotel bookings?

    Yes. In addition to deals on Cardiff to Boston flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Cardiff to Boston?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Cardiff to Boston.

  • Can I find deals for business class flights from Cardiff to Boston?

    Yes. Cheapflights offers flight deals from Cardiff to Boston by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Cardiff to Boston?

    Currently, October is the cheapest month in which you can book a flight from Cardiff to Boston (average of £10). Flying from Cardiff to Boston in July is currently the most expensive (average of £724). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Burlington
Peabody
Cambridge
Somerville
Quincy
Chelmsford

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Cardiff to Boston

See prices for flight routes from nearby airports that may be better suited for you.
Manchester to Boston flights
Bristol to Boston flights
Manchester to Hartford flights
Manchester to Worcester flights
Bristol to Hartford flights
Cardiff to Hartford flights

Top 2 airlines flying from Cardiff to Boston

Discover the top 2 airlines that operate flights from Cardiff to Boston. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 15 July 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest£439Average£509FlexibilityNo cancel feeOn-time75%
Search KLM flights
Virgin AtlanticCheapest£449Average£731FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Cardiff to Boston?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Cardiff to Boston. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Cardiff to Boston?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Boston from Cardiff.

Can Cheapflights find flights from Cardiff to Boston with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Cardiff to Boston, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Cardiff to Boston become cheaper?

Yes! Start tracking prices for Cardiff to Boston flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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